// 实现一个翻译服务器
#include <muduo/net/TcpServer.h>
#include <muduo/net/EventLoop.h>
#include <muduo/net/TcpConnection.h>
#include <muduo/net/Buffer.h>
#include <iostream>
#include <string>
#include <unordered_map>

class DictServer
{
public:
    DictServer(int port) : _server(&_baseloop, muduo::net::InetAddress("0.0.0.0", port),
                                   "DictServer", muduo::net::TcpServer::kReusePort)
    {
        // 设置连接事件 (连接建立/管理) 的回调
        _server.setConnectionCallback(std::bind(&DictServer::onConnection, this, std::placeholders::_1));
        // 设置连接消息的回调
        _server.setMessageCallback(std::bind(&DictServer::onMessage, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
    }

    void start()
    {
        _server.start();  // 先开始监听
        _baseloop.loop(); // 开始死循环事件监控
    }

private:
    void onConnection(const muduo::net::TcpConnectionPtr &conn)
    {
        if (conn->connected())
        {
            std::cout << "建立连接\n";
        }
        else
        {
            std::cout << "连接断开\n";
        }
    }

    void onMessage(const muduo::net::TcpConnectionPtr &conn, muduo::net::Buffer *buf, muduo::Timestamp)
    {
        static std::unordered_map<std::string, std::string> dict_map =
            {
                {"hello", "你好"},
                {"world", "世界"},
                {"person", "人"}};
        std::string msg = buf->retrieveAllAsString();
        std::string res;
        auto it = dict_map.find(msg);
        if (it != dict_map.end())
            res = it->second;
        else
            res = "未知单词! ";
        conn->send(res);
    }

private:
    muduo::net::EventLoop _baseloop;
    muduo::net::TcpServer _server;
};

int main()
{
    DictServer server(9090);
    server.start();
    return 0;
}